From 28fe7b914a0e626cedc39218f94e11eda14a8b87 Mon Sep 17 00:00:00 2001
From: Bastian Wissler
Date: Thu, 19 Feb 2009 12:03:16 +0000
Subject: vmchooser source: * added feature to save last session and choose it
 again next time.

git-svn-id: http://svn.openslx.org/svn/openslx/openslx-src-tools/vmchooser/trunk@2619 95ad53e4-c205-0410-b2fa-d234c58c8868
---
 vmchooser/SWindow.cxx     | 16 ++++++++++
 vmchooser/inc/functions.h |  6 ++++
 vmchooser/main.cxx        |  4 +--
 vmchooser/runImage.cxx    |  1 +
 vmchooser/userSession.cxx | 74 +++++++++++++++++++++++++++++++++++++++++++++++
 5 files changed, 99 insertions(+), 2 deletions(-)
 create mode 100644 vmchooser/userSession.cxx

diff --git a/vmchooser/SWindow.cxx b/vmchooser/SWindow.cxx
index e388d3f..a3ec373 100644
--- a/vmchooser/SWindow.cxx
+++ b/vmchooser/SWindow.cxx
@@ -1,6 +1,7 @@
 
 #include "inc/SWindow.h"
 
+#include "inc/functions.h"
 #include <iostream>
 #include <map>
 
@@ -183,6 +184,8 @@ void SWindow::free_entries()
 
 /******************************************************
  * Small helper function to unfold the 2 parent groups
+ *
+ * ADDED: Now reads session from ~/.vmchooser via helper
  ******************************************************/
 void SWindow::unfold_entries() {
   sel.goto_index(0);
@@ -199,6 +202,19 @@ void SWindow::unfold_entries() {
   //sel.set_focus();
   //sel.set_item_selected(true,1);
   //sel.indented(false);
+
+  char* prename = readSession();
+  sel.goto_index(0);
+  Item* it = (Item*) sel.next();
+  
+  while( it  ) {
+    if(! strcmp(prename,it->label()) ) {
+        sel.select_only_this(0);
+        curr = it;
+        return;
+    }
+    it = (Item*) sel.next();
+  }
 }
 
 
diff --git a/vmchooser/inc/functions.h b/vmchooser/inc/functions.h
index b4a1bbc..afccc9b 100644
--- a/vmchooser/inc/functions.h
+++ b/vmchooser/inc/functions.h
@@ -33,5 +33,11 @@ void addInfo(xmlNode* node); /* This is defined in addPrinters.cxx */
 string writeConfXml(DataEntry& dat);
 
 
+
+/** Extra functions - defined in userSession.cxx */
+void saveSession(DataEntry* dat);
+char* readSession(void);
+
+
 #endif /* _FUNCTIONS_H_ */
 
diff --git a/vmchooser/main.cxx b/vmchooser/main.cxx
index 3b82ef3..4f91117 100644
--- a/vmchooser/main.cxx
+++ b/vmchooser/main.cxx
@@ -17,7 +17,7 @@ SWindow* mainwin;
  *
  * ----------------------
  *
- *  main procedure of vmchooser
+ *  main function of vmchooser
  *
  *
  *
@@ -112,7 +112,7 @@ int main(int argc, char** argv) {
   delete opt;
  
   // just print out version information - helps testing
-  cout << "virtual machine chooser 0.0.6"<< endl;
+  cout << "virtual machine chooser 0.0.7"<< endl;
   if(version) {
     exit(1);
   }
diff --git a/vmchooser/runImage.cxx b/vmchooser/runImage.cxx
index ff9f340..4b7c3e5 100644
--- a/vmchooser/runImage.cxx
+++ b/vmchooser/runImage.cxx
@@ -73,6 +73,7 @@ void runImage(fltk::Widget*, void* p)
       //  fltk::alert("Failed to create child thread!");
       //  return;
       //}
+      saveSession((DataEntry*)p);
       runImage(dat, confxml);
       break;
   }
diff --git a/vmchooser/userSession.cxx b/vmchooser/userSession.cxx
new file mode 100644
index 0000000..af11d4b
--- /dev/null
+++ b/vmchooser/userSession.cxx
@@ -0,0 +1,74 @@
+
+
+
+#include "inc/DataEntry.h"
+#include "inc/functions.h"
+
+#include <cstdlib>
+#include <cstring>
+#include <string>
+#include <iostream>
+#include <fstream>
+
+using namespace std;
+
+/**
+ * @function saveSession: Saves chosen session to prechoose this session next time.
+ *
+ * @param dat: Pointer to the wanted Image/Linux Session
+ * @return void
+ *
+ */
+void saveSession(DataEntry* dat) {
+
+    // get home folder
+    char* home = getenv("HOME");
+    if(home == NULL) {
+        cout << "HOME is not set. Not storing session." << endl;
+        return;
+    }
+
+    // build path
+    string fname = home;
+    fname.append("/.vmchooser");
+
+    // write file with ofstream
+    ofstream fout(fname.c_str(),ios::trunc); // overwrite file
+    fout << dat->short_description << endl;
+}
+
+
+
+/**
+ * @function readSession: Read predefined session from users home folder
+ * 
+ * @return: if not found, return null, else filename for Image XML/ Linux .desktop file
+ */
+char* readSession() {
+
+    // read HOME variable
+    char* home = getenv("HOME");
+    if(home==NULL) {
+        cout << "HOME is not set. Not reading session." << endl;
+        return NULL;
+    }
+
+    // build file name
+    string fname = home;
+    fname.append("/.vmchooser");
+
+    // read presaved session with ifstream
+    ifstream fin(fname.c_str());
+    string sessname;
+    getline(fin,sessname);
+    char* blub = (char*) malloc(sessname.size());
+    strncpy(blub,sessname.c_str(),sessname.size()+1);
+
+    if(!sessname.empty()) {
+        return blub;
+    }
+    else {
+        return NULL;
+    }
+
+}
-- 
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